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/*
 *  handle.c
 * 
 *  Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org>
 *  Copyright (c) 2005 by Aurelien Foret <orelien@chez.com>
 *  Copyright (c) 2005, 2006 by Miklos Vajna <vmiklos@frugalware.org>
 * 
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 
 *  USA.
 */

#include "config.h"
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <limits.h>
#include <sys/types.h>
#include <stdarg.h>
#include <syslog.h>
#include <libintl.h>
#include <time.h>
#include <ftplib.h>
/* pacman */
#include "util.h"
#include "log.h"
#include "list.h"
#include "error.h"
#include "trans.h"
#include "alpm.h"
#include "handle.h"

/* log */
extern alpm_cb_log pm_logcb;
extern FtpCallback pm_dlcb;
extern unsigned char pm_logmask;
/* progress bar */
extern char *pm_dlfnm;
extern int *pm_dloffset;
extern struct timeval *pm_dlt0, *pm_dlt;
extern float *pm_dlrate;
extern int *pm_dlxfered1;
extern unsigned char *pm_dleta_h, *pm_dleta_m, *pm_dleta_s;

pmhandle_t *_alpm_handle_new()
{
  pmhandle_t *handle;

  handle = (pmhandle_t *)malloc(sizeof(pmhandle_t));
  if(handle == NULL) {
    _alpm_log(PM_LOG_ERROR, _("malloc failure: could not allocate %d bytes"), sizeof(pmhandle_t));
    RET_ERR(PM_ERR_MEMORY, NULL);
  }

  memset(handle, 0sizeof(pmhandle_t));
  handle->lckfd = -1;

#ifndef CYGWIN
  /* see if we're root or not */
  handle->uid = geteuid();
#ifndef FAKEROOT
  if(!handle->uid && getenv("FAKEROOTKEY")) {
    /* fakeroot doesn't count, we're non-root */
    handle->uid = 99;
  }
#endif

  /* see if we're root or not (fakeroot does not count) */
#ifndef FAKEROOT
  if(handle->uid == 0 && !getenv("FAKEROOTKEY")) {
#else
  if(handle->uid == 0) {
#endif
    handle->access = PM_ACCESS_RW;
  } else {
    handle->access = PM_ACCESS_RO;
  }
#else
  handle->access = PM_ACCESS_RW;
#endif

  handle->dbpath = strdup(PM_DBPATH);
  handle->cachedir = strdup(PM_CACHEDIR);

  return(handle);
}

int _alpm_handle_free(pmhandle_t *handle)
{
  ASSERT(handle != NULL, RET_ERR(PM_ERR_HANDLE_NULL, -1));

  /* close logfiles */
  if(handle->logfd) {
    fclose(handle->logfd);
    handle->logfd = NULL;
  }
  if(handle->usesyslog) {
    handle->usesyslog = 0;
    closelog();
  }

  /* free memory */
  FREETRANS(handle->trans);
  FREE(handle->root);
  FREE(handle->dbpath);
  FREE(handle->cachedir);
  FREE(handle->logfile);
  FREE(handle->proxyhost);
  FREE(handle->xfercommand);
  FREELIST(handle->dbs_sync);
  FREELIST(handle->noupgrade);
  FREELIST(handle->noextract);
  FREELIST(handle->ignorepkg);
  FREELIST(handle->holdpkg);
  FREELIST(handle->needles);
  free(handle);

  return(0);
}

int _alpm_handle_set_option(pmhandle_t *handle, unsigned char val, unsigned long data)
{
  /* Sanity checks */
  ASSERT(handle != NULL, RET_ERR(PM_ERR_HANDLE_NULL, -1));

  char *p;
  switch(val) {
    case PM_OPT_DBPATH:
      if(handle->dbpath) {
        FREE(handle->dbpath);
      }
      handle->dbpath = strdup((data && strlen((char *)data) != 0) ? (char *)data : PM_DBPATH);
      _alpm_log(PM_LOG_FLOW2, _("PM_OPT_DBPATH set to '%s'"), handle->dbpath);
    break;
    case PM_OPT_CACHEDIR:
      if(handle->cachedir) {
        FREE(handle->cachedir);
      }
      handle->cachedir = strdup((data && strlen((char *)data) != 0) ? (char *)data : PM_CACHEDIR);
      _alpm_log(PM_LOG_FLOW2, _("PM_OPT_CACHEDIR set to '%s'"), handle->cachedir);
    break;
    case PM_OPT_LOGFILE:
      if((char *)data == NULL || handle->uid != 0) {
        return(0);
      }
      if(handle->logfile) {
        FREE(handle->logfile);
      }
      if(handle->logfd) {
        if(fclose(handle->logfd) != 0) {
          handle->logfd = NULL;
          RET_ERR(PM_ERR_OPT_LOGFILE, -1);
        }
        handle->logfd = NULL;
      }
      if((handle->logfd = fopen((char *)data, "a")) == NULL) {
        _alpm_log(PM_LOG_ERROR, _("can't open log file %s"), (char *)data);
        RET_ERR(PM_ERR_OPT_LOGFILE, -1);
      }
      handle->logfile = strdup((char *)data);
      _alpm_log(PM_LOG_FLOW2, _("PM_OPT_LOGFILE set to '%s'"), (char *)data);
    break;
    case PM_OPT_NOUPGRADE:
      if((char *)data && strlen((char *)data) != 0) {
        handle->noupgrade = _alpm_list_add(handle->noupgrade, strdup((char *)data));
        _alpm_log(PM_LOG_FLOW2, _("'%s' added to PM_OPT_NOUPGRADE"), (char *)data);
      } else {
        FREELIST(handle->noupgrade);
        _alpm_log(PM_LOG_FLOW2, _("PM_OPT_NOUPGRADE flushed"));
      }
    break;
    case PM_OPT_NOEXTRACT:
      if((char *)data && strlen((char *)data) != 0) {
        handle->noextract = _alpm_list_add(handle->noextract, strdup((char *)data));
        _alpm_log(PM_LOG_FLOW2, _("'%s' added to PM_OPT_NOEXTRACT"), (char *)data);
      } else {
        FREELIST(handle->noextract);
        _alpm_log(PM_LOG_FLOW2, _("PM_OPT_NOEXTRACT flushed"));
      }
    break;
    case PM_OPT_IGNOREPKG:
      if((char *)data && strlen((char *)data) != 0) {
        handle->ignorepkg = _alpm_list_add(handle->ignorepkg, strdup((char *)data));
        _alpm_log(PM_LOG_FLOW2, _("'%s' added to PM_OPT_IGNOREPKG"), (char *)data);
      } else {
        FREELIST(handle->ignorepkg);
        _alpm_log(PM_LOG_FLOW2, _("PM_OPT_IGNOREPKG flushed"));
      }
    break;
    case PM_OPT_HOLDPKG:
      if((char *)data && strlen((char *)data) != 0) {
        handle->holdpkg = _alpm_list_add(handle->holdpkg, strdup((char *)data));
        _alpm_log(PM_LOG_FLOW2, _("'%s' added to PM_OPT_HOLDPKG"), (char *)data);
      } else {
        FREELIST(handle->holdpkg);
        _alpm_log(PM_LOG_FLOW2, _("PM_OPT_HOLDPKG flushed"));
      }
    break;
    case PM_OPT_NEEDLES:
      if((char *)data && strlen((char *)data) != 0) {
        handle->needles = _alpm_list_add(handle->needles, strdup((char *)data));
        _alpm_log(PM_LOG_FLOW2, _("'%s' added to PM_OPT_NEEDLES"), (char *)data);
      } else {
        FREELIST(handle->needles);
        _alpm_log(PM_LOG_FLOW2, _("PM_OPT_NEEDLES flushed"));
      }
    break;
    case PM_OPT_USESYSLOG:
      if(data != 0 && data != 1) {
        RET_ERR(PM_ERR_OPT_USESYSLOG, -1);
      }
      if(handle->usesyslog == data) {
        return(0);
      }
      if(handle->usesyslog) {
        closelog();
      } else {
        openlog("alpm"0, LOG_USER);
      }
      handle->usesyslog = (unsigned short)data;
      _alpm_log(PM_LOG_FLOW2, _("PM_OPT_USESYSLOG set to '%d'"), handle->usesyslog);
    break;
    case PM_OPT_LOGCB:
      pm_logcb = (alpm_cb_log)data;
    break;
    case PM_OPT_DLCB:
      pm_dlcb = (FtpCallback)data;
    break;
    case PM_OPT_DLFNM:
      pm_dlfnm = (char *)data;
    break;
    case PM_OPT_DLOFFSET:
      pm_dloffset = (int *)data;
    break;
    case PM_OPT_DLT0:
      pm_dlt0 = (struct timeval *)data;
    break;
    case PM_OPT_DLT:
      pm_dlt = (struct timeval *)data;
    break;
    case PM_OPT_DLRATE:
      pm_dlrate = (float *)data;
    break;
    case PM_OPT_DLXFERED1:
      pm_dlxfered1 = (int *)data;
    break;
    case PM_OPT_DLETA_H:
      pm_dleta_h = (unsigned char *)data;
    break;
    case PM_OPT_DLETA_M:
      pm_dleta_m = (unsigned char *)data;
    break;
    case PM_OPT_DLETA_S:
      pm_dleta_s = (unsigned char *)data;
    break;
    case PM_OPT_UPGRADEDELAY:
      handle->upgradedelay = data;
    break;
    case PM_OPT_LOGMASK:
      pm_logmask = (unsigned char)data;
      _alpm_log(PM_LOG_FLOW2, _("PM_OPT_LOGMASK set to '%02x'"), (unsigned char)data);
    break;
    case PM_OPT_PROXYHOST:
      if(handle->proxyhost) {
        FREE(handle->proxyhost);
      }
      p = strstr((char*)data, "://");
      if(p) {
        p += 3;
        if(p == NULL || *p == '\0') {
          RET_ERR(PM_ERR_SERVER_BAD_LOCATION, -1);
        }
        data = (long)p;
      }
#if defined(__APPLE__) || defined(__OpenBSD__)
      handle->proxyhost = strdup((char*)data);
#else
      handle->proxyhost = strndup((char*)data, PATH_MAX);
#endif
      _alpm_log(PM_LOG_FLOW2, _("PM_OPT_PROXYHOST set to '%s'"), handle->proxyhost);
    break;
    case PM_OPT_PROXYPORT:
      handle->proxyport = (unsigned short)data;
      _alpm_log(PM_LOG_FLOW2, _("PM_OPT_PROXYPORT set to '%d'"), handle->proxyport);
    break;
    case PM_OPT_XFERCOMMAND:
      if(handle->xfercommand) {
        FREE(handle->xfercommand);
      }
#if defined(__APPLE__) || defined(__OpenBSD__)
      handle->xfercommand = strdup((char*)data);
#else
      handle->xfercommand = strndup((char*)data, PATH_MAX);
#endif
      _alpm_log(PM_LOG_FLOW2, _("PM_OPT_XFERCOMMAND set to '%s'"), handle->xfercommand);
    break;
    case PM_OPT_NOPASSIVEFTP:
      handle->nopassiveftp = (unsigned short)data;
      _alpm_log(PM_LOG_FLOW2, _("PM_OPT_NOPASSIVEFTP set to '%d'"), handle->nopassiveftp);
    break;
    case PM_OPT_CHOMP:
      handle->chomp = (unsigned short)data;
      _alpm_log(PM_LOG_FLOW2, _("PM_OPT_CHOMP set to '%d'"), handle->chomp);
    break;
    default:
      RET_ERR(PM_ERR_WRONG_ARGS, -1);
  }

  return(0);
}

int _alpm_handle_get_option(pmhandle_t *handle, unsigned char val, long *data)
{
  /* Sanity checks */
  ASSERT(handle != NULL, RET_ERR(PM_ERR_HANDLE_NULL, -1));

  switch(val) {
    case PM_OPT_ROOT:      *data = (long)handle->root; break;
    case PM_OPT_DBPATH:    *data = (long)handle->dbpath; break;
    case PM_OPT_CACHEDIR:  *data = (long)handle->cachedir; break;
    case PM_OPT_LOCALDB:   *data = (long)handle->db_local; break;
    case PM_OPT_SYNCDB:    *data = (long)handle->dbs_sync; break;
    case PM_OPT_LOGFILE:   *data = (long)handle->logfile; break;
    case PM_OPT_NOUPGRADE: *data = (long)handle->noupgrade; break;
    case PM_OPT_NOEXTRACT: *data = (long)handle->noextract; break;
    case PM_OPT_IGNOREPKG: *data = (long)handle->ignorepkg; break;
    case PM_OPT_HOLDPKG:   *data = (long)handle->holdpkg; break;
    case PM_OPT_NEEDLES:   *data = (long)handle->needles; break;
    case PM_OPT_USESYSLOG: *data = handle->usesyslog; break;
    case PM_OPT_LOGCB:     *data = (long)pm_logcb; break;
    case PM_OPT_DLCB:     *data = (long)pm_dlcb; break;
    case PM_OPT_UPGRADEDELAY: *data = (long)handle->upgradedelay; break;
    case PM_OPT_LOGMASK:   *data = pm_logmask; break;
    case PM_OPT_DLFNM:     *data = (long)pm_dlfnm; break;
    case PM_OPT_DLOFFSET:  *data = (long)pm_dloffset; break;
    case PM_OPT_DLT0:      *data = (long)pm_dlt0; break;
    case PM_OPT_DLT:       *data = (long)pm_dlt; break;
    case PM_OPT_DLRATE:    *data = (long)pm_dlrate; break;
    case PM_OPT_DLXFERED1: *data = (long)pm_dlxfered1; break;
    case PM_OPT_DLETA_H:   *data = (long)pm_dleta_h; break;
    case PM_OPT_DLETA_M:   *data = (long)pm_dleta_m; break;
    case PM_OPT_DLETA_S:   *data = (long)pm_dleta_s; break;
    case PM_OPT_PROXYHOST: *data = (long)handle->proxyhost; break;
    case PM_OPT_PROXYPORT: *data = handle->proxyport; break;
    case PM_OPT_XFERCOMMAND: *data = (long)handle->xfercommand; break;
    case PM_OPT_NOPASSIVEFTP: *data = handle->nopassiveftp; break;
    case PM_OPT_CHOMP: *data = handle->chomp; break;
    default:
      RET_ERR(PM_ERR_WRONG_ARGS, -1);
    break;
  }

  return(0);
}

/* vim: set ts=2 sw=2 noet: */